Acetylene-gas lamp.



N0. 64|,862. Patented Jan. 23, I900. J; JAUCH.

ACETYLENE GAS LAMP.

(Application filed Mar. 24, 1899.) (No Model.)

m: NORms PETERS a1, wuorauma, msnwu'rou. 0v 5 NITED I STATES PATENT ()FFICE.

JOSEPH JAUCH, OF MERID EN, CONNECTICUT, ASSIGNOR TO THE BRADLEY &

HUBBARD MFG. CO., OF SAME PLACE.

ACETYLEN E-GAS LAM P.

SPECIFICATION forming part of Letters Patent No. 641,862, dated January 23, 1900.

Application filed March 24, 1899.

To coZZ whom it may concern:

Be it known that I, JOSEPH J AUOH, of Meriden, in the county of New Haven and State of Connecticut, have invented a new Improvement in Acetylene-Gas Lamps; and I do hereby declare the following, when taken in connection with the accompanying drawing and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawing constitutes part of this specification, and represents a view in vertical section of one form which an apparatus constructed in accordance with my invention may assume.

My invention relates to an improvement in table-lamps, the object being to produce a simple, compact, safe, and convenient tablelamp adapted to produce and burn acetylene gas.

With these ends in view my invention consists in a lamp having certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In carrying out my invention as herein shown I employ a hollow float A, which may be of any desired form and which is provided with a Vertical centrally-arranged guidingtube B. The upper end of this tube extends above the upper end of the said float and is furnished with a horizontally-arranged circular seat or bufier C. The lower end of the said tube extends through the bottom of the float and is left open for the reception of a long vertically-arranged guiding-rod D, the lower end of which is bent at a right angle, as at E, and secured to the center of the bottom of the generating-chamber F, which is also the water-tank of the device. By means of the said tube and rod the float is held in place and guided as it rises and falls in the generatingchamber or water-tank F. The said buffer C, crowning the upper end of the tube B, coaots with the lower end of a vertically-movable valve-stem G, which carries a conical valve I-I, coacting with the walls of the cir cular valve-seat I, formed in the lower end of a feeding-cone J, the said lower end of which is supported by a truncated supporting-cone vsupport, as shown.

Serial No. 710,369. (No model.)

K. The upper end of the rod G is supported and guided in a bearing L, mounted upon the inner end of a handle-arm M, projecting inward from the carbid-receptacle N, in the lower end of which the said feeding-cone J and supporting-cone K are located. The said carbid-receptacle itself is set within a pipelike support N, into which it fits closely and intowhich it is introduced and withdrawn by grasping the handle-arm M. It is held in vertical position within this support by means of an annular bead n, formed at its upper end and resting upon the upper edge of the vsaid It is provided with a removable cover N having a central opening to adapt it to fit around the upper end of the bearing L.

The rod G projects upward above the top of the bearing L and through the top of the receptacle N, its projecting upper end being threaded and furnished with a nut O, which provides for its vertical adjustment for the regulation of the valve H in position with respect to the valve-seat I; but the valve may also be regulated directly upon the rod and the same end accomplished.

Normally the lifting power of the float A acts through the buffer or seat 0 against the lower end of the rod G, so as to hold the valve H up into its seat I and prevent the feeding of any of the calcium carbid from the carbidreceptacle N. The rod G is depressed, however, for opening the valve and causing the powder to feed by the engagement with the upper end of the rod of the inner face of 'the crowning top of a gas bell or receiver P, which fits down over the carbid-receptacle N, than which it is larger in diameter, the lower end of the bell being submerged in water contained in the annular water-chamber R, the inner wall of which is formed by the support N, before mentioned, and the outer wall of which is formed by the cylindrical external shell Q of the apparatus. The lower edge of the said shell rests upon the tank F, with which the lower edge of the support N is also connected. The said shell Q extends sufliciently above the top of the carbid-receiver to provide an ample clearance-space Q for the vertical movement of the gas-bell, from which the gas is prevented from escaping by the water in which its lower edge is submerged, as described, and which constitutes a water seal. The shell Q is formed with a removable cap Q of any approved construction.

The gas generated in the chamber F passes through the valve-seat I into the receptacle N and out through a port S, formed in the upper end thereof, into the bell P, from which it passes through a flexible tube T, the upper end of which is connected with a short tube U, mounted in the cap Q of the shell Q, the said tube leading to an air-cock V and a gas-cock IV. A chain connects the bell P with the cap Q of the shell Q, so that when the cap is lifted off the bell comes with it.

In using my improved device the cap Q and the bell P are first removed. The cover N of the carbid-receptacle N is then removed to permit the handle-arm M within the carbidreceptacle to be grasped, after which the receptacle is withdrawn from the support N and charged with powdered calcium carbid and the water-chamber R and the generatingchambei' F filled with water in the quantities required. The carbid-receptacle M, bell P, and cap Q are then returned to place. \Vhen this is done, the inner face of the top of the bell will engage with the upper end of the rod G and force the same downward against the lifting power of the float A, whereby the valve II will be depressed below the valveseat I, through which the carbid will now begin to feed into the water. The generation of acetylene gas immediately takes place, with the effect of expelling the air in the upper portion of the generating-chamber, in the carbid-receptacle, and in the bell P. The air thus displaced passes out through the cock V, which should be closed as soon as the odor of gas is detected. As the generation of gas goes on the bell P will be lifted into the upper portion of the space Q in the shell Q. Now just as soon in the lifting action of the bell as it is clear from the upper end of the rod G the float A reasserts itself and lifts the rod G, so as to lift the valve H against the valve-seat I, whereby the feeding of the calcium carbid and the generation of gas is arrested. The gas thus generated may be held as long as required, its escape being prevented by the immersion of the lower edge of the bell in the water contained in the annular water-chamber R. The gas is burned as required in a burner of any approved construction connected with the gas-cock W. As the gas is used the bell will slowly descend, but without disturbing the valve I-I until the gas is nearly exhausted, when the bell will reengage with the upper end of the rod G and again force the same downward against the lifting power of the float A. More calcium carbid will then be fed into the tank, followed by the generation of more gas and the lifting of the bell P and the stoppage of the feeding of calcium carbid as before, and so on. It will thus be seen that the feeding of the calcium carbid in fractional quantities is automatically controlled. by the bell which contains the gas. It will also be seen that if the gas generated by any one feeding of the carbid is not entirely consumed it can be left until it is wanted, as its escape is effectually prevented.

I have spoken of my improvement as an improvement in table-lamps; but it is apparent that the apparatus may be used for producing large or small quantities of acetylene gas however the same is to be consumed.

It is apparent that in carrying out my invention some changes from the construction herein shown may be made. I would therefore have it understood that I do not limit myself to the exact form shown and described, but hold myself at liberty to make such variations therefrom as fairly fall within the scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a water-tank, of acarbid-receptacle located above the same, a valve-seat through which calcium carbid is fed from the said receptacle into the said tank, a valve-stem extending downward into the said tank and upward above the said receptacle, a fioat located within the tank and coacting with the lower end of the stem which it lifts to force the valve against its seat, a gas-bell located over the said carbid-receptacle and engaging, when in its depressed position, with the upper end of the valve-stem which it depresses for the opening of the valve which is at other times closed by the lifting power of the float, a shell inclosing the said bell and hence the carbid-receptacle above which it extends, and an annular water-chamber in which the lower edge of the bell is submerged.

2. The combination with a water-tank, of a carbid-receptacle located directly above the same, a support for the said receptacle, an annular water-chamber surrounding the said support, a gas-bell located above the said carbid-receptacle and having its lower portion submerged in the water in the said waterchamber, a valve for controlling the fractional feeding of calcium carbid from the cartridge-chamber into the said tank, and a valve-stem carrying the said valve and extending downward for coaction with the said float which lifts the stem to close the valve, and extending upward for coaction with the said bell which depresses the stem to open the valve.

3. The combination with a carbid-receptacle having a valve located in the lower end thereof for controlling the fractional feeding of calcium carbid therefrom, a valve-stem upon which the valve is mounted, extending upward through the receptacle, a gas-bell ex- IIO tending down over the receptacle, and coacting with the upper end of the stem for depressing the same, and opening the Valve, and a bearing located within the upper end .of the receptacle and supported therein by a handie-arm, by means of which the receptacle is manipulated.

In {testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JOSEPH JAUCH.

Witnesses:

A. B. SAVAGE, C. D. NEWBURY. 

